<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
<script>
    let fn = new Function('a','b','return a + b');

    var result = fn(1,2);
    console.log(result);


    console.dir(Function.prototype)

</script>
</html>